# `GET /articleIndex`

Protected. Requires a valid session cookie (`credentials: 'include'`).

List article search index

Returns every article reachable via the company's category tree.
Designed for client-side search / autocomplete preload.
Auth via company access.

REQUIRES `windowSize`. Without it the response is always an empty list — the full
index can be very large and is not useful to a caller that did not ask for a
specific window. Pass the number of entries the client actually intends to preload.


## Query parameters

| Param | Required | Type | Description |
|-------|----------|------|-------------|
| `windowSize` | yes | integer | Number of articles to return (window size). Required; omitting it returns an
empty `articles` array. `truncated` is true when more entries exist than were
returned, signalling the client should request a larger window or narrow its
query.
 |

## Response `200`

Search index

```json
{
  "articles": [
    {
      "id": 1,
      "sku": "…",
      "name": "…",
      "eans": [
        "…"
      ],
      "categoryIds": [
        1
      ]
    }
  ],
  "truncated": true
}
```

## Errors

| Status | Description |
|--------|-------------|
| 400 | No company selected — `{"error":"…"}` |
| 401 | Unauthorized — `{"error":"…"}` |
| 403 | Not authorized — `{"error":"…"}` |
| 404 | Company not found — `{"error":"…"}` |

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